<template>
	<view>
		<!--顶部区域-->
		<view class="smart-page-head">
			<view class="smart-page-head-title">text文本组件	</view>
		</view>
		<view class="smart-padding-wrap">
			<view class="text-box" scroll-y="true">
				<text>{{ text }}</text>
			</view>
			<button type="primary" :disabled="!canAdd" @click="add">add line</button>
			<button type="warn" :disabled="!canRemove" @click="remove">remove line</button>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				texts: [
					'HBuilder,400万开发者选择的TDE',
					'HBuilderX,轻巧、极速，极客编辑器',
					'uni-app,终极跨平台方案',
					'HBuilder,400万开发者选择的TDE',
					'HBuilderX,轻巧、极速，极客编辑器',
					'uni-app,终极跨平台方案',
					'HBuilder,400万开发者选择的TDE',
					'HBuilderX,轻巧、极速，极客编辑器',
					'uni-app,终极跨平台方案',
					'......'
				],
				text:'',
				canAdd:true,
				canRemove:false,
				extraLine:[]
			};
		},
		methods: {
			add:function(e) {
				this.extraLine.push(this.texts[this.extraLine.length % 12]);
				this.text = this.extraLine.join('\n');
				this.canAdd = this.extraLine.length < 12;
				this.canRemove = this.extraLine.length > 0;
			},
			remove:function(e) {
				if (this.extraLine.length > 0){
					this.extraLine.pop();
					this.text = this.extraLine.join('\n');
					this.canAdd = this.extraLine.length < 12;
					this.canRemove = this.extraLine.length > 0;
				}
			}
		}
	}
</script>

<style>

</style>
